Find the length of BC

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?

(x-5)1/2+5=2 what is a possible solution?